Weight Watching ~ Investigation 2

Students are learning the metric system for the next couple of weeks.

• Discover the need for a standard unit for measuring mass.
• Learn the metric standard for measuring mass: the gram.
• Use a balance to determine and compare the mass of objects
• Gain experience estimating mass.
• Use scientific thinking process to conduct investigations and build explanations: observing, communication, comparing, and organizing.  Foss Web

Students were in five groups. They used the sheet called, "Steps for Weighing an Object," ~ to show what they know about the steps needed to weigh an object.

1. Then put the object to be weighed in one cup on the balance. (Paper Clips)
2. Count the number of grams needed to balance the object.
3. Then, record your findings. 
4. Next time, they will weigh different size paper clips, wood square, washer, and plastic chip.

[3] MEA-4 selecting an appropriate unit of English, metric, or non-standard measurement to estimate the length, time, weight, or temperature (M2.1.3)